these 4 derivations will be built:
  /nix/store/6k7zwcplkfvxv0mcj9iszipc1bikbr9r-go2nix-nix-plugin-core-0.1.0.drv
  /nix/store/mrqnqlldfrgymfrfj3932g2275jgf68p-go2nix-nix-plugin-0.1.0.drv
  /nix/store/r4021dj6rhckxdf12kgzlx31hpcs22sb-test-drv-canary-actual.drv
  /nix/store/8k1wl5jr5c3dq4aqja6165ypn8b0mfql-test-drv-canary.drv
building '/nix/store/r4021dj6rhckxdf12kgzlx31hpcs22sb-test-drv-canary-actual.drv'
building '/nix/store/8k1wl5jr5c3dq4aqja6165ypn8b0mfql-test-drv-canary.drv'

upload niks3: ok